# Service bulletin M1599

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 10240479
- Published by NHTSA: 2023\-08\-05
- Manufacturer's number: M1599
- Manufacturer's date: 2023\-07\-27
- NHTSA component: EQUIPMENT:ELECTRICAL:INFOTAINMENT; EQUIPMENT

## NHTSA's summary

SERVICE BULLETIN M1599: 50S/30K HEADSET UPDATE FOR INFOTAINMENT. PURPOSE: This bulletin informs dealers that there is a software update available for the 50S and the 30K headsets. This update is to improve the interaction of the headsets with the Infotainment Control Unit \(IFCU\) on the 2023 FLHXSE and FLTRXSE.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2023/MC-10240479-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2023/MC-10240479-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Equipment and accessories

## Vehicles listed

- 2023 HARLEY\-DAVIDSON FLHXSE
- 2023 HARLEY\-DAVIDSON FLTRXSE

JSON: [/v1/bulletins/10240479](/v1/bulletins/10240479)

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